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| 02061cam 2200313za 4500 |
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| 001 | 9.867364 |
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| 003 | CaOODSP |
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| 005 | 20221107162307 |
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| 007 | cr ||||||||||| |
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| 008 | 190118s1996 onc #o||||f000 0|eng d |
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| 040 | |aCaOODSP|beng |
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| 043 | |an-cn--- |
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| 086 | |aEn42-17/5-1-1997E-PDF |
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| 110 | 1 |aCanada.|bEnvironment Canada. |bFederal-Provincial Working Group on Air Quality Objectives and Guidelines. |
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| 245 | 12|aA protocol for the development of national ambient air quality objectives |h[electronic resource] : |bpart 1, science assessment document and derivation of the reference level(s) : a report / |cby the Federal-Provincial Working Group on Air Quality Objectives and Guidelines. |
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| 260 | |aToronto : |bEnvironment Canada, |c1996. |
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| 300 | |aiii, 49 p. |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 500 | |aCo-published by: Health Canada. |
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| 504 | |aIncludes bibliographical references. |
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| 520 | |a"National Ambient Air Quality Objectives (NAAQO) are benchmark levels of protection for people and the environment in Canada. The criteria for their development and use must be based on scientifically defensible evidence while incorporating a margin of protection that reflects three factors: variability in the levels of exposure and their associated effects; uncertainty in the analysis, and the values of Canadian society. This document explains how scientific information is obtained, evaluated, and published in support of NAAQOs"--Introd. |
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| 530 | |aIssued also in print format. |
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| 692 | 07|2gccst|aAir quality |
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| 692 | 07|2gccst|aAir pollution |
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| 692 | 07|2gccst|aEnvironmental impact assessment |
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| 710 | 1 |aCanada. |bHealth Canada. |
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| 776 | 0#|tA protocol for the development of national ambient air quality objectives part 1: science assessment document and derivation of the reference level(s) |w(CaOODSP)9.646565 |
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| 856 | 40|qPDF|s21.18 MB|uhttps://publications.gc.ca/collections/collection_2019/eccc/En42-17-5-1-1997-eng.pdf |
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